In this episode of The Dairy Health Blackbelt Podcast, Dr. Stephen LeBlanc, Professor and Director of Dairy at the University of Guelph, explains why longevity should not be used as a simple indicator of dairy cow health, welfare, or profitability. He challenges common assumptions around culling rates, survivorship bias, and replacement economics, emphasizing data-driven, cow-specific decisions. Listen now on all major platforms!

“Longevity should be a consequence of good decisions, not the objective guiding herd management strategies.”

Meet the guest: Dr. Stephen LeBlanc is a Professor at the University of Guelph and Director of Dairy at the Centre for Dairy Research and Innovation. His research focuses on dairy cattle reproduction, transition cow health, and metabolic disease prevention, integrating epidemiology, physiology, nutrition, and management. His work supports applied, data-driven strategies that improve dairy health, productivity, and welfare.

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What you will learn:

• (00:00) Highlight
• (00:56) Introduction
• (02:31) Longevity debate
• (03:51) Culling metrics
• (05:18) Heifer availability
• (07:19) Survivorship bias
• (10:09) Replacement costs
• (12:05) Final Questions

𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.

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